During the Reformation, Protestants had several complaints against the Catholic Church, including:
Corruption and Abuse of Power: Protestants believed that the Catholic Church was corrupt and that its leaders had too much power. Many church officials lived lavish lifestyles and participated in activities that were considered immoral. Protestants believed that the church should be more focused on spiritual matters rather than worldly pursuits.
Sale of Indulgences: Protestants were also critical of the sale of indulgences by the Catholic Church. Indulgences were essentially certificates of forgiveness that could be purchased by individuals. Protestants believed that this practice was a form of corruption and that forgiveness could not be bought or sold.